[Philippe R.]

Previous trick works with unlocked LingBo controlers.

Niu scooters need to use a 2nd controler in parallel with 1st controler (locked and encrypted)…

[Philippe R.]

Hello,

I added a [b]Tutorial for hacking maximum top speed in firmware for electric scooter with controler LingBo LBMC072122HK2X[/b]  like Vastro Geco (Ugbest). Maybe it can help for Niu.

https://cyclurba.fr/forum/forum_discussion.php?from=1&messageID=543138#msg543138

This operations apply to standard LingBo HK2X controlers (not locked or specific), in order to remove software limitation of maximal speed, which is dependant of motor and battery.

[url=https://www.elektroroller-forum.de/viewtopic.php?f=84&t=7772&sid=b7f5d8ef3d2fe002a300ba6b59b61c04&start=10]elektroroller-forum.de – eGrace Controller programmieren[/url] (Translation in Google Chrome)

[u]Required tools [/u]:
– [b]USB TTL Converter CH340G [/b] CP2102 PL2303 UART FTDI Arduino 5V + 3.3V : [url=https://fr.aliexpress.com/item/32390188346.html?spm=a2g0s.9042311.0.0.27424c4ddlrUQv]AliExpress[/url] – [url=https://www.ebay.de/itm/USB-2-0-CH340G-TTL-Konverter-Adapter-CP2102-PL2303-UART-FTDI-Arduino-5V-3-3V/252713824136?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160727114228%26meid%3De364d19e8f2943eca8e0d60707108a14%26pid%3D100290%26rk%3D1%26rkt%3D1%26mehot%3Dpp%26sd%3D252713824136%26itm%3D252713824136&_trksid=p2060778.c100290.m3507]ebay[/url] – [url=https://www.cdiscount.com/search/10/convertisseur+usb+ttl+ch340g.html#_his_]Cdiscount_[/url] – [url=https://fr.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190806020801&origin=y&SearchText=USB+TTL+CH340G&switch_new_app=y]AliExpress[/url] – [url=https://www.amazon.fr/s?k=USB+TTL+CH340G&i=electronics&s=price-asc-rank&__mk_fr_FR=%C3%85M%C3%85%C5%BD%C3%95%C3%91&qid=1565086150&ref=sr_st_price-asc-rank]Amazon[/url]
-[b] cable Dupont 10P male/female[/b] Arduino : [url=https://www.ebay.de/itm/Jumper-Wire-Kabel-10P-20cm-Steckbrucken-Raspberry-Arduino-Steckbrett-female/252715059964?hash=item3ad6fdcafc:g:CXwAAOSw-nRb4296]ebay.de[/url] – [url=https://www.ebay.fr/sch/i.html?_odkw=cable+dupont+male+femelle+arduino&_osacat=0&_from=R40&_trksid=m570.l1313&_nkw=cable+dupont+10+male+femelle+arduino&_sacat=0]ebay.fr[/url] – [url=https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20190806065431&origin=y&SearchText=male+Female+DuPont+Cable&switch_new_app=y]AliExpress[/url]
– optional : USB male/female prolongator, to put PC far from scooter

A. On [b]USB TTL Converter[/b], connect [b]cap[/b] on jumper [b]5V [/b]and [b]Vcc [/b], in order to use [b][color=rouge]3,3V[/color][/b]

B. Install driver ([b]CH341ser.exe[/b]) / Connect USB TTL Converter to PC or laptop

C. Turn off scooter and disconnect battery

D. [i]Optional : disassemble trunk under seat, to access and identify controler [b]LingBo LBMC072122 HK2X[/b][/i]

E. Open trunk under seat and search for 6 pins connector from controler, going through big round hole (version 1)
Open trapdoor with 3 screws, if exists (version 2)

F. Connect 4 cables between [b]USB TTL converter[/b] and [b]6 pins connector from controler[/b] on scooter, as explained

[b][u]USB TTL Converter Code > Color on controler 6 pins connector[/u]
[color=rouge]USB 3V3 > RED (3.3V) [/color]
USB GND > BLACK (GND)
[color=bleu]USB Tx > BLUE (Tx)[/color]
[color=argent]USB Rx > WHITE (Rx)[/color][/b]
[color=vert][b]GREEN[/b][/color] and [color=orange][b]YELLOW[/b][/color] cables remain not connected
If connexion error, switch pin [b]Tx [/b] and pin [b]Rx [/b]

G. Download and execute [b]LBMC GUI 4.0.0[/b] – [url=https://drive.google.com/drive/folders/1ZBXscIUssj2y7akjxSmxm30SJVLfPGCa]drive.google[/url] – [url=https://www.dropbox.com/sh/0t8pifqy2p9b3s4/AABu0iZ9EM5A1bG1Kp-E7xUNa?dl=0]Dropbox[/url] – [url=http://www.lingbo-mc.com/content/?368.html]Lingbo-MC[/url]

1. Select English language with right top button (little fellow with bubble)

2. Select [b]COM [/b] port used by USB TTL converter in Windows devices manager (ex: COM3)

3. Click on [b]Connect[/b] button

4. Note values and backup parameters to a [i]Backup.FOC[/i] file, with “[b]Export[/b]” button

5. Go and modify “[b]Speed Limit Func setting[/b]”:
> “[b]Speed limit enable[/b]” = [b]0:Disable[/b]
> “[b]Speed limit ratio (%)[/b]” = [b]100%[/b]

6. Write parameters with “[b]Download[/b]” button and check/read with “[b]Upload[/b]” button
[i]Version note LBMC GUI 4.0.0 – Modified : original “Upload” button modified to read, original “Download” button modified to write[/i]

7. Disconnect and test settings

 

• This reply was modified 5 years, 3 months ago by Philippe R..

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